A measurement of H0 from the Sunyaev-Zeldovich effect

被引：87

作者：

Mason, BS

Myers, ST

Readhead, ACS

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[2] CALTECH, Pasadena, CA 91125 USA

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 555卷 / 01期

基金：

美国国家科学基金会;

关键词：

cosmic microwave background; cosmology : observations; dark matter; distance scale; galaxies; clusters; individual; (Abell; 399; Abell; 401; 478; 1651; 2142; 2256; Coma);

D O I：

10.1086/321737

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a determination of the Hubble constant, H-0, from measurements of the Sunyaev-Zeldovich effect in an orientation-unbiased sample of seven z<0.1 galaxy clusters. With improved X- ray models and a more accurate 32 GHz calibration, we obtain H-0 = 64(-11)(+14) +/- 14(sys) km s(-1) Mpc(-1) for a standard cold dark matter (CDM) cosmology, or H-0 = 66(-11)(+14) +/- 15(sys) km s(-1) Mpc(-1) for a flat Lambda CDM cosmology. In combination with X-ray cluster measurements and the big bang nucleosynthesis value for Omega (B), we find Omega (M).

引用

页码：L11 / L15

页数：5

共 28 条

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BAARS JWM, 1977, ASTRON ASTROPHYS, V61, P99

[2] A MEASUREMENT OF THE VALUE OF THE HUBBLE CONSTANT FROM THE X-RAY-PROPERTIES AND THE SUNYAEV-ZELDOVICH EFFECT OF ABELL-665 [J].